
Serving Piscataway, NJ and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Excellent service,knowledgeable,fast,reasonable price, I highly recommend to anyone that needs HVAC services."





+1


Serving Piscataway, NJ and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"Excellent service,knowledgeable,fast,reasonable price, I highly recommend to anyone that needs HVAC services."





+1

Serving Piscataway, NJ and surrounding areas
Approved
In business since 1958
Free estimates
Emergency services offered
"I have used Speer Air for several years for HVAC preventive maintenance at my home. We recently expanded and they installed a package unit to take care of the expansion space. The work was good and they have been back for adjustments as necessary."




Serving Piscataway, NJ and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"Staff is very friendly and helpful and well-trained professionals. They serviced my appliances and solved my issues on the same day whereas other service companies would not. Liv Air is the best HVAC service provider and I highly recommend their services."





+46

Serving Piscataway, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"My AC broke this morning it was a Saturday I went to Angie s list and immediately got a response from Challenger heating And air-conditioning. They were here within an hour Fernando quickly found the problem and fixed it I am definitely going to be using this company For all my heating and cooling needs"





+11

Serving Piscataway, NJ and surrounding areas
Approved (Corporate)
In business since 1977
Free estimates
Emergency services offered
"Air conditioning repair. Tim was a very knowledgeable service technician and he was able to advise on how to best approach my air conditioning issue. Explained everything thoroughly. Polite and respectful!"





+6

Serving Piscataway, NJ and surrounding areas
Approved
In business since 2017
Free estimates
Emergency services offered
"They definitely earned this 5 ⭐️⭐️⭐️⭐️⭐️ review!! I can't say enough good things about VIP HVAC, they truly went above and beyond! Hector, the owner, came out with two of his crew members the day before the 4th of July to replace both my AC and furnace. They arrived right at 8am and worked nonstop until 6:30pm to make sure everything was done perfectly. Throughout the job, they found a few unexpected issues, but Hector and his team kept me informed the entire time and handled everything with professionalism and care. I was so impressed by their hard work, attention to detail, and clear communication. If you’re looking for a trustworthy and dedicated HVAC company, I highly recommend VIP HVAC. Hector and his crew are the real deal!"





+107

Serving Piscataway, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Warranties offered
"I was in desperate need of an AC unit repair and Kyle came to the rescue. Iâ ve owned my home since 2019 and have been looking for and honest and reliable AC technician. Iâ ve used a couple of other technicians but Kyle will be my go to moving forward. He kept me informed of everything he was doing and educated me on how my unit should be running. He even gave me info for what filters I should be purchasing to help my unit run efficiently. He gave me several options with regards to repairs and I went with the higher priced option because it was so reasonable and I didnâ t want to cut corners. I will be scheduling my routine maintenance with him for the summer and winter. Iâ m so happy I finally found an AC technician I can rely on. I highly recommend him."





+22

Serving Piscataway, NJ and surrounding areas
Approved
In business since 1968
Free estimates
Emergency services offered
"I had my HVAC replaced in my condo during the summer of 2018. I had just moved and had painters working when it malfunctioned. There turned out to be a leak and I decided to purchase a new system after hearing about previous problems with the unit. I had used Valairco for annual checkups and was happy with the company. I ordered the new system requesting it be done as soon as possible because of the situation. They immediately ordered the new system and installed it as soon as it was shipped to them. Lou did a great job and I’m happy with my purchase and guarantee."





+44

Serving Piscataway, NJ and surrounding areas
Approved
In business since 1969
Free estimates
Emergency services offered
"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"





+13

Serving Piscataway, NJ and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Free estimates
Warranties offered
"The entire Green Ductors team is awesome. From the start, Igor reached out to me shortly after I entered my HomeAdviors request. Unfortunately, I was unable to reply to him right away. He was very good with following up and when I was finally able to respond I had the pleasure of working with Olga. She was very agreeable and really worked hard to find a time for the work to be completed. When duct cleaning day arrived, Alik arrived a few minutes before the scheduled time (8 AM) and waited in my driveway until I motioned to him that it was ok to start. Before he entered my home, he removed his shoes. We walked around the house looking at the vents and my heating system. Next, he brought in all of his machines and gear. He worked tirelessly for almost 6 hours cleaning all of the vents (dryer vent included) He took a bunch of before (YUCK!!!) and after (sparkling clean) pictures. He was really a master at his craft. My entire family noticed that by the next morning our allergies felt better, our noses less stuffy and the air in our house seemed much cleaner. I will not wait as long as I had previously for my next air duct cleaning. I would not hesitate to hire Green Ductors again. In an age where many home improvement contractors talk a big game and then don't deliver, Green Ductors delivered a top notch service at a reasonable price. My sincerest thanks to them for a job well done."





+369
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.

Use this guide to budget for appliance installation costs based on factors such as appliance type, installation complexity, labor rates, and more.

Explore how factors such as materials, local labor rates, and the type of damage affect the cost to repair a burst pipe.

Use this guide to learn how much rebar costs per foot so you can budget for your next big home improvement project.

Discover how factors such as linear footage, local labor rates, and trim type affect the total cost of painting baseboards.

Learn how much cat or dog door installation costs based on factors like the door size, material, location, and added features.

Discover how much an electric furnace costs based on factors such as unit size, local labor rates, electrical upgrades, and ductwork condition.